EPA Method 524.2 on Rtx-502.2

GC_EV00010

	Peaks
1.	Dichlorodifluoromethane
2.	Chloromethane
3.	Vinyl chloride
4.	Bromomethane
5.	Chloroethane
6.	Trichlorofluoromethane
7.	1,1-Dichloroethene
8.	Methylene chloride
9.	trans-1,2-Dichloroethene
10.	1,1-Dichloroethane
11.	2,2-Dichloropropane
12.	cis-1,2-Dichloroethene
13.	Bromochloromethane
14.	Chloroform
15.	1,1,1-Trichloroethane
16.	1,1-Dichloropropene
17.	Carbon tetrachloride
18.	Benzene
19.	1,2-Dichloroethane
20.	Trichloroethene

	Peaks
21.	1,2-Dichloropropane
22.	Bromodichloromethane
23.	Dibromomethane
24.	cis-1,3-dichloropropene
25.	Toluene
26.	trans-1,3-dichloropropene
27.	1,1,2-trichloroethane
28.	1,3-dichloropropane
29.	Tetrachloroethene
30.	Dibromochloromethane
31.	ethylene dibromide
32.	Chlorobenzene
33.	Ethylbenzene
34.	1,1,1,2-tetrachloroethane
35.	m-Xylene
36.	p-Xylene
37.	o-Xylene
38.	Styrene
39.	Isopropylbenzene
40.	Bromoform

	Peaks
41.	1,1,2,2-Tetrachloroethane
42.	1,2,3-trichloropropane
43.	Propylbenzene
44.	Bromobenzene
45.	1,3,5-trimethylbenzene
46.	2-Chlorotoluene
47.	4-Chlorotoluene
48.	tert-Butylbenzene
49.	1,2,4-trimethylbenzene
50.	sec-Butylbenzene
51.	p-Isopropyltoluene
52.	1,3-dichlorobenzene
53.	1,4-dichlorobenzene
54.	n-Butylbenzene
55.	1,2-dichlorobenzene
56.	1,2-dibromo-3-chloropropane
57.	1,2,4-trichlorobenzene
58.	Hexachlorobutadiene
59.	Naphthalene
60.	1,2,3-trichlorobenzene

Oven
Column	Rtx-502.2, 40 m, 0.18 mm ID, 1.00 µm (cat.# 40915)
Sample	Drinking Water VOA MegaMix, 524.2 Rev. 4.1 (cat.# 30052)
Conc.:	200 ppb VOA standards in 5mL RO water
Injection	purge and trap split (split ratio 30:1)
Liner:	1mm Split (cat.# 20973)
Inj. Temp.:	200 °C
Purge and Trap
Instrument:	Tekmar LCS 2000
Trap Type:	Vocarb 4000
Purge:	11 min @ ambient, flow 40 mL/min
Desorb Preheat Temp.:	250 °C
Desorb:	2 min @ 245 °C, flow 30 mL/min
Interface Connection:	injection port
Transfer Line Tubing:	Siltek/Sulfinert Tubing(cat.# 22504)
Oven Temp.:	35 °C (hold 4 min) to 150 °C at 6 °C/min to 220 °C at 8 °C/min (hold 8 min)
Carrier Gas	He, constant pressure
Linear Velocity:	21 cm/sec @ 35 °C

Detector	MS
Mode:	Scan
Transfer Line Temp.:	250 °C
Tune Type:	BFB
Ionization Mode:	EI
Scan Range:	35-300 amu
Instrument	HP5890 GC & 5971 MSD
Notes	Optimized Using Pro ezGC software

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